Ethyl-chloride tube



H. P KRAFT.

ETHYL CHLORIDE TUBE. APPLICATION FILED JAN. 2, 1919,.

1,431,236. Patented Oct. 10,1922.

/ INVENTOR B y A iiorneys,

WITNESS Ma W:

Patented Get. 10, 1922.

innate 'rr or'ricn.

HENRY P. KRAFT, OF RIDG-EWOOD, NEW JERSEY, ASSIGN'OR TO A. SCHRADERS SON,

INCORPORATED, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

ETHYL-OHLORIDE TUBE.

Applicaticn filed January 2, 1919. Serial no. 269,271.

To all who're it may concern:

' Be it known that I, HENRY P. KnAr'r, a citizen of the UnitedStates of Amer ca,'re-

siding in Ridgewood, in the county .of Bergen and State of New Jersey, have invented certain new and useful Improvements in Ethyl-Chloride Tubes, of which the follow ing is a specification. i

This invention relates particularly to tubes for containing ethyl 'chloride or other highly H volatile liquids which are expelled from the tube by the internal pressure due to the heat of the hand, although it is applicable to other purposes.

The ejection nozzle forsuch tubes is usually in the form of a fine capillary opening,

I l commonlyformed in the neck of the tube itself. It has heretofore been proposed to form this nozzle of a separate piece of glass and to hold'it in place by a sleeve which is in engagement with the neck of the tube.

'Such nozzles are not accurately formed as to length and it is desirable that there shall be acapacity for adjustment in thesleeve to take up. such variations." The device is usually provided with a stopper hinged to one side of the sleeve, andprovided with a thumb-piece or handle by which it is adapted to be pressed away from the top of the capillary opening, being returned to closing position by a spring. a

According to the present invention, I provide a structure of this type which is capable of being positioned on the neck of a tube which has an outwardly extending flange or bead, and according to the preferred form. of .the invention I'provide a fully described.

Referring tothe drawings which show several forms of the invention Figure 1 is an elevation of the upper a part of a tubeshowing the device in lace;

to Fig. 1, section; I

Fig. 2 is a'similar view, at right angles showing certain of the parts in Fig. 3 is an elevation of the sleeve of Figs.1and2.. t v A i "Fig. 4. is a cross-section of Fig. 3 on the line 4.-4;

Fig. 5 is any elevation of the collar detached; and Fig. 6 is a view similar to Fig. 2, showing a modified construction.

Referring first to Figs. 1 to 5, let A indicate; an ethyl chloride tube having a neck B. Such necks are usually "formed with an outwardly extending flange or bead C.

Resting upon the flange is a capillary noz- 216 D, usually formed of glass and provided with a fine hole Between the capillary nozzle and the top of the neck is arranged a packing ring F which makes a tight joint between the nozzle and the neck In one forni of the invention I provide a sleeveG, which is of sufiiciently large diameter to slip down over the neck past the bead (1. My invention provides means for holding the sleeve G fixedly in place against any outward strain. In the, construction of Figs. 1 to 5, I form a plurality of holes in the sleeve and in each hole insert a compressible member, such as H, which is adapted to extend through the sleeve to a suflicient extent to engage the underside of the bead F. To press such compressible members inwardly and to hold them in place, I preferably provide a collar J which is internally screwthreaded to engage the lower screw-thread K of the sleeve G. Preferably the upper end of thecollar is slightly flared so that it may easily pass the lower edges of the compressible members H. By screwing up the cap, these members are ressed inwardly, thus clamping the sleeve fixedly in place on the neck,

The sleeve G is also provided with an upper thread L, upon which screws a cap member M which has an internal flange N, adapted'to engage the upper end of the capillary member D. y screwing down the cap, the capillary member is hence forced downwardly against the packing F until a tight joint is obtained. This construction permits the use of widely different lengths of capillary members with equal efliciency.

pivoted at P to the cap member M and carries a rubber pad or facing Q at its upper end, which is adapted to be pressed against the top of the capillary opening by a spring R, reacting against the lower end S of the lever. The latter serves as a handle or thumb-piece by which the stopper can be displaced from over the top of the capillary opening.

In the construction shown in Fig. 6, the collar J and compressible members H are omitted, and the sleeve G is held in fixed position by a spring T. The spring being of elastic construction is capable of suflicient expansion to pass over the bead of the neck and the sleeve is formed internally at its lower part with a helical recess or thread designed to receive the upper part of the spring. When thespring is so inserted in the sleeve, it, of course, cannot expand to pass upwardly over the bead. It hence forms a fixed stop which prevents the upward movement of the sleeve. Preferably, the cap M screws on the top of the sleeve as before, whereby the packin ring may be compressed and different lon he oi capillary members accommodated; iluch adjustments can also be made by screwing the sleeve upon the spring to a greater or less extent, in which case the cap M canbe formed in one piece with the sleeve U". The compression of the packing ring however, requires the application of some little force, and during the screwing movement of the sleeve the spring would necessarily have to be held against rotation with the result that, in the hands of a careless workman, possible distortion of the spring would takeplace. I therefore prefer to ad ust the spring fully in place so that it forms a more or less rigid stop, andto provide the threaded cap-for forcing down the capillary member against the packing. During this operation the more rigid sleeve can be grasped, and the spring is subjected only to a compression strain. If desired, the spring may be continued downwardly until it encloses the entire neck and a few convolutions, such as those shown at T, may be flared outwardly so as to lie on top of the tube body, thereby not only forming a protection for the neck itself, but also for the juncture of the neck with the tube. This guards the parts from liability of breakage, it the neck or stopper is carelessly subjected to any exterior shock.

While I have shown and described several forms 01": the invention, it will. be understood that I do not wish to be limited thereto, since various changes may be made therein withoutdeparting from the spirit of the invention. j

What I claim is:

1. The combination of a vessel having a neck, a removable sleeve fitting onto said neck, removable meansengaging said neck capillary member, a cap carried by said sleeve and engaging the outer end of said member, and a stopper carried by said cap.

8. The combination of a vessel having a beaded neck, a sleeve fitting over said head, means underlying said bead to prevent escape of the sleeve, a capillary member above said bead, a packing between said capillary member and said neck, a cap engaging the outer end of said member, said parts being adjustable to compress the packing.

l. The combination with a vessel having a beaded neck, of a sleeve fitting over said bead, means for fixedly positioning said sleeve, ascrew-threaded cap engaging said sleeve, a capillary member within said cap, the cap engaging the upper end of said member, a packing between said capillary member and said neck, said cap being adjustable on said sleeve to accommodate different sizes of capillary members and to compress said packing, and a stopper carried by said cap. I

5, The combination of a vessel having a beaded neck, a sleeve fitting over said neck,

a spring surrounding said neck beneath said head and engaging said sleeve, and a stopper carried by said sleeve.

6. An ethyl chloride tube or the like having a neck, a stopper and means for holding the stopper on said neck, and a protecting member encircling said neck and removably mounted thereon.

7. An ethyl chloride tube or the like having a neck, a. stopper and means for holding the stopper on said neck, a protecting mem- 0 b'er encircling said neck and removably mounted thereon and extending over the point of juncture of said neck with said tube. c

8. An ethyl chloride tube or the likehaving a neck and a pro-tecting'member encircling saidneck, said protecting member comprising a spring.

9. The combination of an ethyl chloride tube orthe like having a neck, a. sleeve pass- 12 ing over said neck, a spring constituting a stop for said sleeve, said spring extending downwardly over the neck, and a stopper carried by said sleeve. i 10, The combination of a vessel having a neck, a stopper-holding device connected to said neck,-a'cap screwing on said stopperholding device and carrying a stopper, and a capillary tube within said cap, thecap engaging the outer end of the tube.

11. The combination of a vessel having ing said sleeve on said neck in adjustable a neck, a sleeve on said neck, means for holdpositions, a cap adjustable on said sleeve 10 ing said sleeve on said neck in various adand adapted to engage a capillary member, justable positions, and a cap adjustable on and a stopper pivoted to said cap. said sleeve and adapted to engage a capillary In Witness whereof, I have hereunto signed member. my name.

12. The combination of a vessel having a neck, a sleeve on said neck, means for hold- HENRY P. KRAFT. 

